Fight limescale with this Calgon 3-in-1 Anti-Bacterial Gel Water Softener  Choose from 750ml, 1500m and 4500ml UK #1 water softener brand Kills 99.9% of bacteria in your washing machine Unbeatable protection against limescale, residue and bad odours  Cleaner laundry in every wash and safe for use on all types of fabrics  Minimizes energy consumption by keeping the washing machine heating elements clean Buying Options:  9.99 pounds for 750ml  18.99 pounds for 1500ml  54.99 pounds for 4500ml